数据搜索系统,热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

LM1818N 数据表(PDF) 6 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 LM1818N
功能描述  Electronically Switched Audio Tape System
Download  14 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

LM1818N 数据表(HTML) 6 Page - National Semiconductor (TI)

Back Button LM1818N Datasheet HTML 2Page - National Semiconductor (TI) LM1818N Datasheet HTML 3Page - National Semiconductor (TI) LM1818N Datasheet HTML 4Page - National Semiconductor (TI) LM1818N Datasheet HTML 5Page - National Semiconductor (TI) LM1818N Datasheet HTML 6Page - National Semiconductor (TI) LM1818N Datasheet HTML 7Page - National Semiconductor (TI) LM1818N Datasheet HTML 8Page - National Semiconductor (TI) LM1818N Datasheet HTML 9Page - National Semiconductor (TI) LM1818N Datasheet HTML 10Page - National Semiconductor (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 14 page
background image
Typical Performance Characteristics
Automatic Level Control
(ALC) Response Characteristic
Preamp Input Noise Voltage
Preamp Input Noise Current
TLH7894 – 5
Application Hints
PREAMPLIFIERS
(Figure 5)
There are 2 identical preamplifiers with 1 common output
pin on the IC One amplifies low level inputs such as a mi-
crophone in the record mode and another amplifies the sig-
nal from the playback head in the playback mode The am-
plifiers use a common capacitor C6 to set the low frequen-
cy pole of the closed loop responses On the playback am-
plifier the collector of the input device is made available so
that an external low noise device can be connected in crit-
ical applications When using an external low noise transis-
tor pins 17 and 18 of the IC are shorted together to ensure
that the internal input transistor is turned OFF and the exter-
nal transistor’s collector is tied to pin 19 The input and
feedback connections are now made to the external input
transistor The amplifiers are stable for all gains above 5
and have a typical open loop gain of 100 dB R8 and R9
enable C6 to be quickly charged and set the DC gain Inter-
nal biasing provides a DC voltage independent of tempera-
ture at pin 17 so that the preamplifier DC output will remain
relatively constant with temperature Supply decoupling is
provided by an internal regulator Additional decoupling can
be added for the input stages by increasing the size of the
capacitor on pin 20 of the IC A fast charging circuit is con-
nected to the preamplifiers’ input capacitors (pins 16 and
17) to decrease the turn-ON time Larger input capacitors
decrease the noise by reducing the source impedance at
lower frequencies where 1f noise current produces an in-
put noise voltage The input resistance of the preamplifiers
is typically 50 kX
TLH7894 – 6
Quiescent DC Output Voltage
VDCe
1aR9R8J (05b50c10b6R2)VifR2aR3l10RE
where RE e
R8R9
R8 a R9
AC Voltage Gain
AAC e
R4 a
R3
1 a sC5R3
R2
a
1
TLH7894 – 7
FIGURE 5 Preamplifier
6


类似零件编号 - LM1818N

制造商部件名数据表功能描述
logo
Seoul Semiconductor
LM181 SEOUL-LM181 Datasheet
376Kb / 14P
   INFRARED LAMP LED
LM181 SEOUL-LM181 Datasheet
360Kb / 13P
   CYAN LAMP LED
LM181 SEOUL-LM181 Datasheet
392Kb / 14P
   RED OVAL LAMP LED
LM181 SEOUL-LM181 Datasheet
392Kb / 14P
   RED OVAL LAMP LED
LM181 SEOUL-LM181 Datasheet
378Kb / 14P
   RED LAMP LED
More results

类似说明 - LM1818N

制造商部件名数据表功能描述
logo
Sanyo Semicon Device
LA4160 SANYO-LA4160 Datasheet
320Kb / 11P
   Single-Chip Tape Recorder Audio System
logo
National Semiconductor ...
LM1863 NSC-LM1863 Datasheet
268Kb / 14P
   AM Radio System for Electronically Tuned Radios
logo
Mechatronics, Inc.
LPH80B99 MECHATRONICS-LPH80B99 Datasheet
608Kb / 1P
   electronically commutated
LPH12A99 MECHATRONICS-LPH12A99 Datasheet
862Kb / 1P
   electronically commutated
LPH80A99 MECHATRONICS-LPH80A99 Datasheet
489Kb / 1P
   electronically commutated
LPH15P99 MECHATRONICS-LPH15P99 Datasheet
531Kb / 1P
   electronically commutated
LPH12A99-5 MECHATRONICS-LPH12A99-5 Datasheet
230Kb / 1P
   electronically commutated
LPH12B99 MECHATRONICS-LPH12B99 Datasheet
506Kb / 1P
   electronically commutated
LPH60B99 MECHATRONICS-LPH60B99 Datasheet
486Kb / 1P
   electronically commutated
logo
IET Labs Inc.
SOURCE IET-SOURCE Datasheet
227Kb / 1P
   Electronically Controlled Resistance Box
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14


数据表 下载

Go To PDF Page


链接网址




隐私政策
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com